Home / 87,406.40-131,023.20-34,745.60

Finding the Fourth Proportional to 87,406.40, 131,023.20 and 34,745.60

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Solution

The fourth proportional to 87,406.40, 131,023.20 and 34,745.60 is: 52,084.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,406.40 : 131,023.20 = 34,745.60 : x
  2. Step 2: Convert to fraction form
    87,406.40/131,023.20 = 34,745.60/x
  3. Step 3: Cross multiply
    87,406.40x = 131,023.20 × 34,745.60
  4. Step 4: Simplify right side
    87,406.40x = 4,552,479,697.92
  5. Step 5: Solve for x
    x = 4,552,479,697.92/87,406.40
  6. Step 6: Final answer
    x = 52,084.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.